Home / 5,315.86-7,335.57-3,077.56

Finding the Fourth Proportional to 5,315.86, 7,335.57 and 3,077.56

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Solution

The fourth proportional to 5,315.86, 7,335.57 and 3,077.56 is: 4,246.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.86 : 7,335.57 = 3,077.56 : x
  2. Step 2: Convert to fraction form
    5,315.86/7,335.57 = 3,077.56/x
  3. Step 3: Cross multiply
    5,315.86x = 7,335.57 × 3,077.56
  4. Step 4: Simplify right side
    5,315.86x = 22,575,656.81
  5. Step 5: Solve for x
    x = 22,575,656.81/5,315.86
  6. Step 6: Final answer
    x = 4,246.85

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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.