Home / 5,903.16-8,148.94-3,989.40

Finding the Fourth Proportional to 5,903.16, 8,148.94 and 3,989.40

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Solution

The fourth proportional to 5,903.16, 8,148.94 and 3,989.40 is: 5,507.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,903.16 : 8,148.94 = 3,989.40 : x
  2. Step 2: Convert to fraction form
    5,903.16/8,148.94 = 3,989.40/x
  3. Step 3: Cross multiply
    5,903.16x = 8,148.94 × 3,989.40
  4. Step 4: Simplify right side
    5,903.16x = 32,509,381.24
  5. Step 5: Solve for x
    x = 32,509,381.24/5,903.16
  6. Step 6: Final answer
    x = 5,507.12

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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.