Home / 6,490.19-8,956.35-3,657.81

Finding the Fourth Proportional to 6,490.19, 8,956.35 and 3,657.81

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Solution

The fourth proportional to 6,490.19, 8,956.35 and 3,657.81 is: 5,047.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.19 : 8,956.35 = 3,657.81 : x
  2. Step 2: Convert to fraction form
    6,490.19/8,956.35 = 3,657.81/x
  3. Step 3: Cross multiply
    6,490.19x = 8,956.35 × 3,657.81
  4. Step 4: Simplify right side
    6,490.19x = 32,760,626.59
  5. Step 5: Solve for x
    x = 32,760,626.59/6,490.19
  6. Step 6: Final answer
    x = 5,047.72

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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.