Home / 1,547.92-2,130.60-1,282.96

Finding the Fourth Proportional to 1,547.92, 2,130.60 and 1,282.96

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Solution

The fourth proportional to 1,547.92, 2,130.60 and 1,282.96 is: 1,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.92 : 2,130.60 = 1,282.96 : x
  2. Step 2: Convert to fraction form
    1,547.92/2,130.60 = 1,282.96/x
  3. Step 3: Cross multiply
    1,547.92x = 2,130.60 × 1,282.96
  4. Step 4: Simplify right side
    1,547.92x = 2,733,474.58
  5. Step 5: Solve for x
    x = 2,733,474.58/1,547.92
  6. Step 6: Final answer
    x = 1,765.90

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1.5x scale

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.