Home / 1,117.05-1,675.56-284.11

Finding the Fourth Proportional to 1,117.05, 1,675.56 and 284.11

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Solution

The fourth proportional to 1,117.05, 1,675.56 and 284.11 is: 426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.05 : 1,675.56 = 284.11 : x
  2. Step 2: Convert to fraction form
    1,117.05/1,675.56 = 284.11/x
  3. Step 3: Cross multiply
    1,117.05x = 1,675.56 × 284.11
  4. Step 4: Simplify right side
    1,117.05x = 476,045.25
  5. Step 5: Solve for x
    x = 476,045.25/1,117.05
  6. Step 6: Final answer
    x = 426.16

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1.5x scale

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.