Home / 1,244.40-1,857.51-1,158.96

Finding the Fourth Proportional to 1,244.40, 1,857.51 and 1,158.96

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Solution

The fourth proportional to 1,244.40, 1,857.51 and 1,158.96 is: 1,729.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.40 : 1,857.51 = 1,158.96 : x
  2. Step 2: Convert to fraction form
    1,244.40/1,857.51 = 1,158.96/x
  3. Step 3: Cross multiply
    1,244.40x = 1,857.51 × 1,158.96
  4. Step 4: Simplify right side
    1,244.40x = 2,152,779.79
  5. Step 5: Solve for x
    x = 2,152,779.79/1,244.40
  6. Step 6: Final answer
    x = 1,729.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.