Home / 1,070.48-1,609.68-1,031.60

Finding the Fourth Proportional to 1,070.48, 1,609.68 and 1,031.60

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Solution

The fourth proportional to 1,070.48, 1,609.68 and 1,031.60 is: 1,551.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070.48 : 1,609.68 = 1,031.60 : x
  2. Step 2: Convert to fraction form
    1,070.48/1,609.68 = 1,031.60/x
  3. Step 3: Cross multiply
    1,070.48x = 1,609.68 × 1,031.60
  4. Step 4: Simplify right side
    1,070.48x = 1,660,545.89
  5. Step 5: Solve for x
    x = 1,660,545.89/1,070.48
  6. Step 6: Final answer
    x = 1,551.22

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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.