Home / 1,631.23-2,248.52-1,237.57

Finding the Fourth Proportional to 1,631.23, 2,248.52 and 1,237.57

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Solution

The fourth proportional to 1,631.23, 2,248.52 and 1,237.57 is: 1,705.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.23 : 2,248.52 = 1,237.57 : x
  2. Step 2: Convert to fraction form
    1,631.23/2,248.52 = 1,237.57/x
  3. Step 3: Cross multiply
    1,631.23x = 2,248.52 × 1,237.57
  4. Step 4: Simplify right side
    1,631.23x = 2,782,700.90
  5. Step 5: Solve for x
    x = 2,782,700.90/1,631.23
  6. Step 6: Final answer
    x = 1,705.89

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1.5x scale

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.