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Finding the Fourth Proportional to 1,062.84, 1,584.96 and 1,053.12

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Solution

The fourth proportional to 1,062.84, 1,584.96 and 1,053.12 is: 1,570.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.84 : 1,584.96 = 1,053.12 : x
  2. Step 2: Convert to fraction form
    1,062.84/1,584.96 = 1,053.12/x
  3. Step 3: Cross multiply
    1,062.84x = 1,584.96 × 1,053.12
  4. Step 4: Simplify right side
    1,062.84x = 1,669,153.08
  5. Step 5: Solve for x
    x = 1,669,153.08/1,062.84
  6. Step 6: Final answer
    x = 1,570.47

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1.5x scale

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.