Home / 1,575.74-2,176.08-1,298.72

Finding the Fourth Proportional to 1,575.74, 2,176.08 and 1,298.72

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Solution

The fourth proportional to 1,575.74, 2,176.08 and 1,298.72 is: 1,793.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.74 : 2,176.08 = 1,298.72 : x
  2. Step 2: Convert to fraction form
    1,575.74/2,176.08 = 1,298.72/x
  3. Step 3: Cross multiply
    1,575.74x = 2,176.08 × 1,298.72
  4. Step 4: Simplify right side
    1,575.74x = 2,826,118.62
  5. Step 5: Solve for x
    x = 2,826,118.62/1,575.74
  6. Step 6: Final answer
    x = 1,793.52

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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.