Home / 5,378.16-7,421.93-3,020.25

Finding the Fourth Proportional to 5,378.16, 7,421.93 and 3,020.25

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Solution

The fourth proportional to 5,378.16, 7,421.93 and 3,020.25 is: 4,167.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.16 : 7,421.93 = 3,020.25 : x
  2. Step 2: Convert to fraction form
    5,378.16/7,421.93 = 3,020.25/x
  3. Step 3: Cross multiply
    5,378.16x = 7,421.93 × 3,020.25
  4. Step 4: Simplify right side
    5,378.16x = 22,416,068.98
  5. Step 5: Solve for x
    x = 22,416,068.98/5,378.16
  6. Step 6: Final answer
    x = 4,167.98

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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.