Home / 6,370.32-9,555.54-1,987.80

Finding the Fourth Proportional to 6,370.32, 9,555.54 and 1,987.80

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Solution

The fourth proportional to 6,370.32, 9,555.54 and 1,987.80 is: 2,981.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,370.32 : 9,555.54 = 1,987.80 : x
  2. Step 2: Convert to fraction form
    6,370.32/9,555.54 = 1,987.80/x
  3. Step 3: Cross multiply
    6,370.32x = 9,555.54 × 1,987.80
  4. Step 4: Simplify right side
    6,370.32x = 18,994,502.41
  5. Step 5: Solve for x
    x = 18,994,502.41/6,370.32
  6. Step 6: Final answer
    x = 2,981.72

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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.