Home / 2,947.74-4,420.18-1,715.42

Finding the Fourth Proportional to 2,947.74, 4,420.18 and 1,715.42

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Solution

The fourth proportional to 2,947.74, 4,420.18 and 1,715.42 is: 2,572.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.74 : 4,420.18 = 1,715.42 : x
  2. Step 2: Convert to fraction form
    2,947.74/4,420.18 = 1,715.42/x
  3. Step 3: Cross multiply
    2,947.74x = 4,420.18 × 1,715.42
  4. Step 4: Simplify right side
    2,947.74x = 7,582,465.18
  5. Step 5: Solve for x
    x = 7,582,465.18/2,947.74
  6. Step 6: Final answer
    x = 2,572.30

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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.