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Finding the Fourth Proportional to 6,661.04, 9,985.06 and 4,319.60

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Solution

The fourth proportional to 6,661.04, 9,985.06 and 4,319.60 is: 6,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.04 : 9,985.06 = 4,319.60 : x
  2. Step 2: Convert to fraction form
    6,661.04/9,985.06 = 4,319.60/x
  3. Step 3: Cross multiply
    6,661.04x = 9,985.06 × 4,319.60
  4. Step 4: Simplify right side
    6,661.04x = 43,131,465.18
  5. Step 5: Solve for x
    x = 43,131,465.18/6,661.04
  6. Step 6: Final answer
    x = 6,475.18

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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.