Home / 1,503.04-2,254.39-407.49

Finding the Fourth Proportional to 1,503.04, 2,254.39 and 407.49

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Solution

The fourth proportional to 1,503.04, 2,254.39 and 407.49 is: 611.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.04 : 2,254.39 = 407.49 : x
  2. Step 2: Convert to fraction form
    1,503.04/2,254.39 = 407.49/x
  3. Step 3: Cross multiply
    1,503.04x = 2,254.39 × 407.49
  4. Step 4: Simplify right side
    1,503.04x = 918,639.39
  5. Step 5: Solve for x
    x = 918,639.39/1,503.04
  6. Step 6: Final answer
    x = 611.19

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.