Home / 7,580.32-11,370.16-2,315.12

Finding the Fourth Proportional to 7,580.32, 11,370.16 and 2,315.12

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Solution

The fourth proportional to 7,580.32, 11,370.16 and 2,315.12 is: 3,472.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,580.32 : 11,370.16 = 2,315.12 : x
  2. Step 2: Convert to fraction form
    7,580.32/11,370.16 = 2,315.12/x
  3. Step 3: Cross multiply
    7,580.32x = 11,370.16 × 2,315.12
  4. Step 4: Simplify right side
    7,580.32x = 26,323,284.82
  5. Step 5: Solve for x
    x = 26,323,284.82/7,580.32
  6. Step 6: Final answer
    x = 3,472.58

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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.