Home / 1,066.13-1,599.18-286.20

Finding the Fourth Proportional to 1,066.13, 1,599.18 and 286.20

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Solution

The fourth proportional to 1,066.13, 1,599.18 and 286.20 is: 429.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066.13 : 1,599.18 = 286.20 : x
  2. Step 2: Convert to fraction form
    1,066.13/1,599.18 = 286.20/x
  3. Step 3: Cross multiply
    1,066.13x = 1,599.18 × 286.20
  4. Step 4: Simplify right side
    1,066.13x = 457,685.32
  5. Step 5: Solve for x
    x = 457,685.32/1,066.13
  6. Step 6: Final answer
    x = 429.30

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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.