Home / 1,361.43-2,045.28-1,306.10

Finding the Fourth Proportional to 1,361.43, 2,045.28 and 1,306.10

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Solution

The fourth proportional to 1,361.43, 2,045.28 and 1,306.10 is: 1,962.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.43 : 2,045.28 = 1,306.10 : x
  2. Step 2: Convert to fraction form
    1,361.43/2,045.28 = 1,306.10/x
  3. Step 3: Cross multiply
    1,361.43x = 2,045.28 × 1,306.10
  4. Step 4: Simplify right side
    1,361.43x = 2,671,340.21
  5. Step 5: Solve for x
    x = 2,671,340.21/1,361.43
  6. Step 6: Final answer
    x = 1,962.16

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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.