Home / 3,034.20-4,547.70-1,279.20

Finding the Fourth Proportional to 3,034.20, 4,547.70 and 1,279.20

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Solution

The fourth proportional to 3,034.20, 4,547.70 and 1,279.20 is: 1,917.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,034.20 : 4,547.70 = 1,279.20 : x
  2. Step 2: Convert to fraction form
    3,034.20/4,547.70 = 1,279.20/x
  3. Step 3: Cross multiply
    3,034.20x = 4,547.70 × 1,279.20
  4. Step 4: Simplify right side
    3,034.20x = 5,817,417.84
  5. Step 5: Solve for x
    x = 5,817,417.84/3,034.20
  6. Step 6: Final answer
    x = 1,917.28

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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.