Home / 5,315.31-7,971.74-1,566.12

Finding the Fourth Proportional to 5,315.31, 7,971.74 and 1,566.12

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Solution

The fourth proportional to 5,315.31, 7,971.74 and 1,566.12 is: 2,348.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.31 : 7,971.74 = 1,566.12 : x
  2. Step 2: Convert to fraction form
    5,315.31/7,971.74 = 1,566.12/x
  3. Step 3: Cross multiply
    5,315.31x = 7,971.74 × 1,566.12
  4. Step 4: Simplify right side
    5,315.31x = 12,484,701.45
  5. Step 5: Solve for x
    x = 12,484,701.45/5,315.31
  6. Step 6: Final answer
    x = 2,348.82

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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.