Home / 5,586.12-7,697.71-3,988.26

Finding the Fourth Proportional to 5,586.12, 7,697.71 and 3,988.26

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Solution

The fourth proportional to 5,586.12, 7,697.71 and 3,988.26 is: 5,495.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,586.12 : 7,697.71 = 3,988.26 : x
  2. Step 2: Convert to fraction form
    5,586.12/7,697.71 = 3,988.26/x
  3. Step 3: Cross multiply
    5,586.12x = 7,697.71 × 3,988.26
  4. Step 4: Simplify right side
    5,586.12x = 30,700,430.40
  5. Step 5: Solve for x
    x = 30,700,430.40/5,586.12
  6. Step 6: Final answer
    x = 5,495.85

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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.