Home / 1,510.39-2,084.93-1,090.90

Finding the Fourth Proportional to 1,510.39, 2,084.93 and 1,090.90

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Solution

The fourth proportional to 1,510.39, 2,084.93 and 1,090.90 is: 1,505.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.39 : 2,084.93 = 1,090.90 : x
  2. Step 2: Convert to fraction form
    1,510.39/2,084.93 = 1,090.90/x
  3. Step 3: Cross multiply
    1,510.39x = 2,084.93 × 1,090.90
  4. Step 4: Simplify right side
    1,510.39x = 2,274,450.14
  5. Step 5: Solve for x
    x = 2,274,450.14/1,510.39
  6. Step 6: Final answer
    x = 1,505.87

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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.