Home / 5,355.24-7,390.62-3,117.30

Finding the Fourth Proportional to 5,355.24, 7,390.62 and 3,117.30

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Solution

The fourth proportional to 5,355.24, 7,390.62 and 3,117.30 is: 4,302.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.24 : 7,390.62 = 3,117.30 : x
  2. Step 2: Convert to fraction form
    5,355.24/7,390.62 = 3,117.30/x
  3. Step 3: Cross multiply
    5,355.24x = 7,390.62 × 3,117.30
  4. Step 4: Simplify right side
    5,355.24x = 23,038,779.73
  5. Step 5: Solve for x
    x = 23,038,779.73/5,355.24
  6. Step 6: Final answer
    x = 4,302.10

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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.