Home / 5,315.32-7,335.54-3,077.80

Finding the Fourth Proportional to 5,315.32, 7,335.54 and 3,077.80

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Solution

The fourth proportional to 5,315.32, 7,335.54 and 3,077.80 is: 4,247.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.32 : 7,335.54 = 3,077.80 : x
  2. Step 2: Convert to fraction form
    5,315.32/7,335.54 = 3,077.80/x
  3. Step 3: Cross multiply
    5,315.32x = 7,335.54 × 3,077.80
  4. Step 4: Simplify right side
    5,315.32x = 22,577,325.01
  5. Step 5: Solve for x
    x = 22,577,325.01/5,315.32
  6. Step 6: Final answer
    x = 4,247.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.