Home / 5,291.31-7,298.70-3,405.35

Finding the Fourth Proportional to 5,291.31, 7,298.70 and 3,405.35

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Solution

The fourth proportional to 5,291.31, 7,298.70 and 3,405.35 is: 4,697.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.31 : 7,298.70 = 3,405.35 : x
  2. Step 2: Convert to fraction form
    5,291.31/7,298.70 = 3,405.35/x
  3. Step 3: Cross multiply
    5,291.31x = 7,298.70 × 3,405.35
  4. Step 4: Simplify right side
    5,291.31x = 24,854,591.55
  5. Step 5: Solve for x
    x = 24,854,591.55/5,291.31
  6. Step 6: Final answer
    x = 4,697.25

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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.