Home / 7,587.39-11,378.21-2,320.80

Finding the Fourth Proportional to 7,587.39, 11,378.21 and 2,320.80

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Solution

The fourth proportional to 7,587.39, 11,378.21 and 2,320.80 is: 3,480.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,587.39 : 11,378.21 = 2,320.80 : x
  2. Step 2: Convert to fraction form
    7,587.39/11,378.21 = 2,320.80/x
  3. Step 3: Cross multiply
    7,587.39x = 11,378.21 × 2,320.80
  4. Step 4: Simplify right side
    7,587.39x = 26,406,538.16
  5. Step 5: Solve for x
    x = 26,406,538.16/7,587.39
  6. Step 6: Final answer
    x = 3,480.32

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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.