Home / 4,746.10-7,123.20-2,117.65

Finding the Fourth Proportional to 4,746.10, 7,123.20 and 2,117.65

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Solution

The fourth proportional to 4,746.10, 7,123.20 and 2,117.65 is: 3,178.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,746.10 : 7,123.20 = 2,117.65 : x
  2. Step 2: Convert to fraction form
    4,746.10/7,123.20 = 2,117.65/x
  3. Step 3: Cross multiply
    4,746.10x = 7,123.20 × 2,117.65
  4. Step 4: Simplify right side
    4,746.10x = 15,084,444.48
  5. Step 5: Solve for x
    x = 15,084,444.48/4,746.10
  6. Step 6: Final answer
    x = 3,178.28

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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.