Home / 4,688.10-6,470.28-2,920.28

Finding the Fourth Proportional to 4,688.10, 6,470.28 and 2,920.28

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Solution

The fourth proportional to 4,688.10, 6,470.28 and 2,920.28 is: 4,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.10 : 6,470.28 = 2,920.28 : x
  2. Step 2: Convert to fraction form
    4,688.10/6,470.28 = 2,920.28/x
  3. Step 3: Cross multiply
    4,688.10x = 6,470.28 × 2,920.28
  4. Step 4: Simplify right side
    4,688.10x = 18,894,996.93
  5. Step 5: Solve for x
    x = 18,894,996.93/4,688.10
  6. Step 6: Final answer
    x = 4,030.42

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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.