Home / 5,485.10-8,227.65-4,391.60

Finding the Fourth Proportional to 5,485.10, 8,227.65 and 4,391.60

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Solution

The fourth proportional to 5,485.10, 8,227.65 and 4,391.60 is: 6,587.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.10 : 8,227.65 = 4,391.60 : x
  2. Step 2: Convert to fraction form
    5,485.10/8,227.65 = 4,391.60/x
  3. Step 3: Cross multiply
    5,485.10x = 8,227.65 × 4,391.60
  4. Step 4: Simplify right side
    5,485.10x = 36,132,547.74
  5. Step 5: Solve for x
    x = 36,132,547.74/5,485.10
  6. Step 6: Final answer
    x = 6,587.40

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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.