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Finding the Fourth Proportional to 1,675.47, 2,510.46 and 1,187.64

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Solution

The fourth proportional to 1,675.47, 2,510.46 and 1,187.64 is: 1,779.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.47 : 2,510.46 = 1,187.64 : x
  2. Step 2: Convert to fraction form
    1,675.47/2,510.46 = 1,187.64/x
  3. Step 3: Cross multiply
    1,675.47x = 2,510.46 × 1,187.64
  4. Step 4: Simplify right side
    1,675.47x = 2,981,522.71
  5. Step 5: Solve for x
    x = 2,981,522.71/1,675.47
  6. Step 6: Final answer
    x = 1,779.51

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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.