Home / 7,178.17-9,903.65-4,191.85

Finding the Fourth Proportional to 7,178.17, 9,903.65 and 4,191.85

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Solution

The fourth proportional to 7,178.17, 9,903.65 and 4,191.85 is: 5,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.17 : 9,903.65 = 4,191.85 : x
  2. Step 2: Convert to fraction form
    7,178.17/9,903.65 = 4,191.85/x
  3. Step 3: Cross multiply
    7,178.17x = 9,903.65 × 4,191.85
  4. Step 4: Simplify right side
    7,178.17x = 41,514,569.53
  5. Step 5: Solve for x
    x = 41,514,569.53/7,178.17
  6. Step 6: Final answer
    x = 5,783.45

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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.