Home / 5,666.18-7,819.71-3,148.40

Finding the Fourth Proportional to 5,666.18, 7,819.71 and 3,148.40

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Solution

The fourth proportional to 5,666.18, 7,819.71 and 3,148.40 is: 4,345.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666.18 : 7,819.71 = 3,148.40 : x
  2. Step 2: Convert to fraction form
    5,666.18/7,819.71 = 3,148.40/x
  3. Step 3: Cross multiply
    5,666.18x = 7,819.71 × 3,148.40
  4. Step 4: Simplify right side
    5,666.18x = 24,619,535.87
  5. Step 5: Solve for x
    x = 24,619,535.87/5,666.18
  6. Step 6: Final answer
    x = 4,345.00

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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.