Home / 4,291.23-6,438.86-1,520.00

Finding the Fourth Proportional to 4,291.23, 6,438.86 and 1,520.00

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Solution

The fourth proportional to 4,291.23, 6,438.86 and 1,520.00 is: 2,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.23 : 6,438.86 = 1,520.00 : x
  2. Step 2: Convert to fraction form
    4,291.23/6,438.86 = 1,520.00/x
  3. Step 3: Cross multiply
    4,291.23x = 6,438.86 × 1,520.00
  4. Step 4: Simplify right side
    4,291.23x = 9,787,027.41
  5. Step 5: Solve for x
    x = 9,787,027.41/4,291.23
  6. Step 6: Final answer
    x = 2,280.70

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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.