Home / 4,645.20-6,959.68-3,870.18

Finding the Fourth Proportional to 4,645.20, 6,959.68 and 3,870.18

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Solution

The fourth proportional to 4,645.20, 6,959.68 and 3,870.18 is: 5,798.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,645.20 : 6,959.68 = 3,870.18 : x
  2. Step 2: Convert to fraction form
    4,645.20/6,959.68 = 3,870.18/x
  3. Step 3: Cross multiply
    4,645.20x = 6,959.68 × 3,870.18
  4. Step 4: Simplify right side
    4,645.20x = 26,935,214.34
  5. Step 5: Solve for x
    x = 26,935,214.34/4,645.20
  6. Step 6: Final answer
    x = 5,798.50

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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.