Home / 3,117.79-4,670.20-1,475.65

Finding the Fourth Proportional to 3,117.79, 4,670.20 and 1,475.65

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Solution

The fourth proportional to 3,117.79, 4,670.20 and 1,475.65 is: 2,210.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.79 : 4,670.20 = 1,475.65 : x
  2. Step 2: Convert to fraction form
    3,117.79/4,670.20 = 1,475.65/x
  3. Step 3: Cross multiply
    3,117.79x = 4,670.20 × 1,475.65
  4. Step 4: Simplify right side
    3,117.79x = 6,891,580.63
  5. Step 5: Solve for x
    x = 6,891,580.63/3,117.79
  6. Step 6: Final answer
    x = 2,210.41

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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.