Home / 2,770.40-4,156.68-1,470.08

Finding the Fourth Proportional to 2,770.40, 4,156.68 and 1,470.08

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Solution

The fourth proportional to 2,770.40, 4,156.68 and 1,470.08 is: 2,205.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.40 : 4,156.68 = 1,470.08 : x
  2. Step 2: Convert to fraction form
    2,770.40/4,156.68 = 1,470.08/x
  3. Step 3: Cross multiply
    2,770.40x = 4,156.68 × 1,470.08
  4. Step 4: Simplify right side
    2,770.40x = 6,110,652.13
  5. Step 5: Solve for x
    x = 6,110,652.13/2,770.40
  6. Step 6: Final answer
    x = 2,205.69

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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.