Home / 7,355.40-10,146.56-4,661.86

Finding the Fourth Proportional to 7,355.40, 10,146.56 and 4,661.86

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Solution

The fourth proportional to 7,355.40, 10,146.56 and 4,661.86 is: 6,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,355.40 : 10,146.56 = 4,661.86 : x
  2. Step 2: Convert to fraction form
    7,355.40/10,146.56 = 4,661.86/x
  3. Step 3: Cross multiply
    7,355.40x = 10,146.56 × 4,661.86
  4. Step 4: Simplify right side
    7,355.40x = 47,301,842.20
  5. Step 5: Solve for x
    x = 47,301,842.20/7,355.40
  6. Step 6: Final answer
    x = 6,430.90

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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.