Home / 6,381.95-8,807.07-3,587.45

Finding the Fourth Proportional to 6,381.95, 8,807.07 and 3,587.45

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Solution

The fourth proportional to 6,381.95, 8,807.07 and 3,587.45 is: 4,950.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.95 : 8,807.07 = 3,587.45 : x
  2. Step 2: Convert to fraction form
    6,381.95/8,807.07 = 3,587.45/x
  3. Step 3: Cross multiply
    6,381.95x = 8,807.07 × 3,587.45
  4. Step 4: Simplify right side
    6,381.95x = 31,594,879.24
  5. Step 5: Solve for x
    x = 31,594,879.24/6,381.95
  6. Step 6: Final answer
    x = 4,950.67

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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.