Home / 3,439.89-4,747.34-1,948.07

Finding the Fourth Proportional to 3,439.89, 4,747.34 and 1,948.07

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Solution

The fourth proportional to 3,439.89, 4,747.34 and 1,948.07 is: 2,688.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.89 : 4,747.34 = 1,948.07 : x
  2. Step 2: Convert to fraction form
    3,439.89/4,747.34 = 1,948.07/x
  3. Step 3: Cross multiply
    3,439.89x = 4,747.34 × 1,948.07
  4. Step 4: Simplify right side
    3,439.89x = 9,248,117.16
  5. Step 5: Solve for x
    x = 9,248,117.16/3,439.89
  6. Step 6: Final answer
    x = 2,688.49

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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.