Home / 2,710.68-4,064.76-2,189.40

Finding the Fourth Proportional to 2,710.68, 4,064.76 and 2,189.40

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Solution

The fourth proportional to 2,710.68, 4,064.76 and 2,189.40 is: 3,283.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,710.68 : 4,064.76 = 2,189.40 : x
  2. Step 2: Convert to fraction form
    2,710.68/4,064.76 = 2,189.40/x
  3. Step 3: Cross multiply
    2,710.68x = 4,064.76 × 2,189.40
  4. Step 4: Simplify right side
    2,710.68x = 8,899,385.54
  5. Step 5: Solve for x
    x = 8,899,385.54/2,710.68
  6. Step 6: Final answer
    x = 3,283.08

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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.