Home / 1,400.29-2,087.07-1,254.18

Finding the Fourth Proportional to 1,400.29, 2,087.07 and 1,254.18

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Solution

The fourth proportional to 1,400.29, 2,087.07 and 1,254.18 is: 1,869.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.29 : 2,087.07 = 1,254.18 : x
  2. Step 2: Convert to fraction form
    1,400.29/2,087.07 = 1,254.18/x
  3. Step 3: Cross multiply
    1,400.29x = 2,087.07 × 1,254.18
  4. Step 4: Simplify right side
    1,400.29x = 2,617,564.58
  5. Step 5: Solve for x
    x = 2,617,564.58/1,400.29
  6. Step 6: Final answer
    x = 1,869.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.