Home / 5,617.93-8,430.60-2,155.18

Finding the Fourth Proportional to 5,617.93, 8,430.60 and 2,155.18

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Solution

The fourth proportional to 5,617.93, 8,430.60 and 2,155.18 is: 3,234.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.93 : 8,430.60 = 2,155.18 : x
  2. Step 2: Convert to fraction form
    5,617.93/8,430.60 = 2,155.18/x
  3. Step 3: Cross multiply
    5,617.93x = 8,430.60 × 2,155.18
  4. Step 4: Simplify right side
    5,617.93x = 18,169,460.51
  5. Step 5: Solve for x
    x = 18,169,460.51/5,617.93
  6. Step 6: Final answer
    x = 3,234.19

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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.