Home / 7,764.78-10,710.18-4,781.58

Finding the Fourth Proportional to 7,764.78, 10,710.18 and 4,781.58

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Solution

The fourth proportional to 7,764.78, 10,710.18 and 4,781.58 is: 6,595.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.78 : 10,710.18 = 4,781.58 : x
  2. Step 2: Convert to fraction form
    7,764.78/10,710.18 = 4,781.58/x
  3. Step 3: Cross multiply
    7,764.78x = 10,710.18 × 4,781.58
  4. Step 4: Simplify right side
    7,764.78x = 51,211,582.48
  5. Step 5: Solve for x
    x = 51,211,582.48/7,764.78
  6. Step 6: Final answer
    x = 6,595.37

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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.