Home / 1,108.04-1,656.05-1,020.47

Finding the Fourth Proportional to 1,108.04, 1,656.05 and 1,020.47

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Solution

The fourth proportional to 1,108.04, 1,656.05 and 1,020.47 is: 1,525.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108.04 : 1,656.05 = 1,020.47 : x
  2. Step 2: Convert to fraction form
    1,108.04/1,656.05 = 1,020.47/x
  3. Step 3: Cross multiply
    1,108.04x = 1,656.05 × 1,020.47
  4. Step 4: Simplify right side
    1,108.04x = 1,689,935.96
  5. Step 5: Solve for x
    x = 1,689,935.96/1,108.04
  6. Step 6: Final answer
    x = 1,525.16

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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.