Home / 7,279.68-10,920.60-2,897.04

Finding the Fourth Proportional to 7,279.68, 10,920.60 and 2,897.04

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Solution

The fourth proportional to 7,279.68, 10,920.60 and 2,897.04 is: 4,345.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.68 : 10,920.60 = 2,897.04 : x
  2. Step 2: Convert to fraction form
    7,279.68/10,920.60 = 2,897.04/x
  3. Step 3: Cross multiply
    7,279.68x = 10,920.60 × 2,897.04
  4. Step 4: Simplify right side
    7,279.68x = 31,637,415.02
  5. Step 5: Solve for x
    x = 31,637,415.02/7,279.68
  6. Step 6: Final answer
    x = 4,345.99

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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.