Home / 2,387.12-3,263.60-2,296.40

Finding the Fourth Proportional to 2,387.12, 3,263.60 and 2,296.40

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Solution

The fourth proportional to 2,387.12, 3,263.60 and 2,296.40 is: 3,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.12 : 3,263.60 = 2,296.40 : x
  2. Step 2: Convert to fraction form
    2,387.12/3,263.60 = 2,296.40/x
  3. Step 3: Cross multiply
    2,387.12x = 3,263.60 × 2,296.40
  4. Step 4: Simplify right side
    2,387.12x = 7,494,531.04
  5. Step 5: Solve for x
    x = 7,494,531.04/2,387.12
  6. Step 6: Final answer
    x = 3,139.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.