Home / 1,631.40-2,445.67-1,169.70

Finding the Fourth Proportional to 1,631.40, 2,445.67 and 1,169.70

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Solution

The fourth proportional to 1,631.40, 2,445.67 and 1,169.70 is: 1,753.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.40 : 2,445.67 = 1,169.70 : x
  2. Step 2: Convert to fraction form
    1,631.40/2,445.67 = 1,169.70/x
  3. Step 3: Cross multiply
    1,631.40x = 2,445.67 × 1,169.70
  4. Step 4: Simplify right side
    1,631.40x = 2,860,700.20
  5. Step 5: Solve for x
    x = 2,860,700.20/1,631.40
  6. Step 6: Final answer
    x = 1,753.52

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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.