Home / 1,510.04-2,084.19-920.45

Finding the Fourth Proportional to 1,510.04, 2,084.19 and 920.45

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Solution

The fourth proportional to 1,510.04, 2,084.19 and 920.45 is: 1,270.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.04 : 2,084.19 = 920.45 : x
  2. Step 2: Convert to fraction form
    1,510.04/2,084.19 = 920.45/x
  3. Step 3: Cross multiply
    1,510.04x = 2,084.19 × 920.45
  4. Step 4: Simplify right side
    1,510.04x = 1,918,392.69
  5. Step 5: Solve for x
    x = 1,918,392.69/1,510.04
  6. Step 6: Final answer
    x = 1,270.43

Related Problems

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.