Home / 4,509.90-6,223.64-2,520.45

Finding the Fourth Proportional to 4,509.90, 6,223.64 and 2,520.45

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Solution

The fourth proportional to 4,509.90, 6,223.64 and 2,520.45 is: 3,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.90 : 6,223.64 = 2,520.45 : x
  2. Step 2: Convert to fraction form
    4,509.90/6,223.64 = 2,520.45/x
  3. Step 3: Cross multiply
    4,509.90x = 6,223.64 × 2,520.45
  4. Step 4: Simplify right side
    4,509.90x = 15,686,373.44
  5. Step 5: Solve for x
    x = 15,686,373.44/4,509.90
  6. Step 6: Final answer
    x = 3,478.21

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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.