Home / 5,671.15-8,490.75-4,280.07

Finding the Fourth Proportional to 5,671.15, 8,490.75 and 4,280.07

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Solution

The fourth proportional to 5,671.15, 8,490.75 and 4,280.07 is: 6,408.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.15 : 8,490.75 = 4,280.07 : x
  2. Step 2: Convert to fraction form
    5,671.15/8,490.75 = 4,280.07/x
  3. Step 3: Cross multiply
    5,671.15x = 8,490.75 × 4,280.07
  4. Step 4: Simplify right side
    5,671.15x = 36,341,004.35
  5. Step 5: Solve for x
    x = 36,341,004.35/5,671.15
  6. Step 6: Final answer
    x = 6,408.05

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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.