Home / 1,035.16-1,429.50-788.20

Finding the Fourth Proportional to 1,035.16, 1,429.50 and 788.20

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Solution

The fourth proportional to 1,035.16, 1,429.50 and 788.20 is: 1,088.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.16 : 1,429.50 = 788.20 : x
  2. Step 2: Convert to fraction form
    1,035.16/1,429.50 = 788.20/x
  3. Step 3: Cross multiply
    1,035.16x = 1,429.50 × 788.20
  4. Step 4: Simplify right side
    1,035.16x = 1,126,731.90
  5. Step 5: Solve for x
    x = 1,126,731.90/1,035.16
  6. Step 6: Final answer
    x = 1,088.46

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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.