Home / 4,298.72-6,448.88-1,377.76

Finding the Fourth Proportional to 4,298.72, 6,448.88 and 1,377.76

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Solution

The fourth proportional to 4,298.72, 6,448.88 and 1,377.76 is: 2,066.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,298.72 : 6,448.88 = 1,377.76 : x
  2. Step 2: Convert to fraction form
    4,298.72/6,448.88 = 1,377.76/x
  3. Step 3: Cross multiply
    4,298.72x = 6,448.88 × 1,377.76
  4. Step 4: Simplify right side
    4,298.72x = 8,885,008.91
  5. Step 5: Solve for x
    x = 8,885,008.91/4,298.72
  6. Step 6: Final answer
    x = 2,066.90

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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.