Home / 5,528.90-8,281.20-4,435.40

Finding the Fourth Proportional to 5,528.90, 8,281.20 and 4,435.40

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Solution

The fourth proportional to 5,528.90, 8,281.20 and 4,435.40 is: 6,643.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,528.90 : 8,281.20 = 4,435.40 : x
  2. Step 2: Convert to fraction form
    5,528.90/8,281.20 = 4,435.40/x
  3. Step 3: Cross multiply
    5,528.90x = 8,281.20 × 4,435.40
  4. Step 4: Simplify right side
    5,528.90x = 36,730,434.48
  5. Step 5: Solve for x
    x = 36,730,434.48/5,528.90
  6. Step 6: Final answer
    x = 6,643.35

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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.