Home / 4,390.10-6,599.55-4,130.90

Finding the Fourth Proportional to 4,390.10, 6,599.55 and 4,130.90

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Solution

The fourth proportional to 4,390.10, 6,599.55 and 4,130.90 is: 6,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.10 : 6,599.55 = 4,130.90 : x
  2. Step 2: Convert to fraction form
    4,390.10/6,599.55 = 4,130.90/x
  3. Step 3: Cross multiply
    4,390.10x = 6,599.55 × 4,130.90
  4. Step 4: Simplify right side
    4,390.10x = 27,262,081.10
  5. Step 5: Solve for x
    x = 27,262,081.10/4,390.10
  6. Step 6: Final answer
    x = 6,209.90

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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.