Home / 1,070.16-1,477.62-945.96

Finding the Fourth Proportional to 1,070.16, 1,477.62 and 945.96

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Solution

The fourth proportional to 1,070.16, 1,477.62 and 945.96 is: 1,306.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070.16 : 1,477.62 = 945.96 : x
  2. Step 2: Convert to fraction form
    1,070.16/1,477.62 = 945.96/x
  3. Step 3: Cross multiply
    1,070.16x = 1,477.62 × 945.96
  4. Step 4: Simplify right side
    1,070.16x = 1,397,769.42
  5. Step 5: Solve for x
    x = 1,397,769.42/1,070.16
  6. Step 6: Final answer
    x = 1,306.13

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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.