Home / 2,947.50-4,423.07-1,715.49

Finding the Fourth Proportional to 2,947.50, 4,423.07 and 1,715.49

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Solution

The fourth proportional to 2,947.50, 4,423.07 and 1,715.49 is: 2,574.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.50 : 4,423.07 = 1,715.49 : x
  2. Step 2: Convert to fraction form
    2,947.50/4,423.07 = 1,715.49/x
  3. Step 3: Cross multiply
    2,947.50x = 4,423.07 × 1,715.49
  4. Step 4: Simplify right side
    2,947.50x = 7,587,736.64
  5. Step 5: Solve for x
    x = 7,587,736.64/2,947.50
  6. Step 6: Final answer
    x = 2,574.30

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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.