Home / 6,445.20-8,894.16-4,870.56

Finding the Fourth Proportional to 6,445.20, 8,894.16 and 4,870.56

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Solution

The fourth proportional to 6,445.20, 8,894.16 and 4,870.56 is: 6,721.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.20 : 8,894.16 = 4,870.56 : x
  2. Step 2: Convert to fraction form
    6,445.20/8,894.16 = 4,870.56/x
  3. Step 3: Cross multiply
    6,445.20x = 8,894.16 × 4,870.56
  4. Step 4: Simplify right side
    6,445.20x = 43,319,539.93
  5. Step 5: Solve for x
    x = 43,319,539.93/6,445.20
  6. Step 6: Final answer
    x = 6,721.21

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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.