Home / 1,609.20-2,397.18-1,570.80

Finding the Fourth Proportional to 1,609.20, 2,397.18 and 1,570.80

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Solution

The fourth proportional to 1,609.20, 2,397.18 and 1,570.80 is: 2,339.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.20 : 2,397.18 = 1,570.80 : x
  2. Step 2: Convert to fraction form
    1,609.20/2,397.18 = 1,570.80/x
  3. Step 3: Cross multiply
    1,609.20x = 2,397.18 × 1,570.80
  4. Step 4: Simplify right side
    1,609.20x = 3,765,490.34
  5. Step 5: Solve for x
    x = 3,765,490.34/1,609.20
  6. Step 6: Final answer
    x = 2,339.98

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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.