Home / 5,612.49-8,420.90-2,148.93

Finding the Fourth Proportional to 5,612.49, 8,420.90 and 2,148.93

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Solution

The fourth proportional to 5,612.49, 8,420.90 and 2,148.93 is: 3,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.49 : 8,420.90 = 2,148.93 : x
  2. Step 2: Convert to fraction form
    5,612.49/8,420.90 = 2,148.93/x
  3. Step 3: Cross multiply
    5,612.49x = 8,420.90 × 2,148.93
  4. Step 4: Simplify right side
    5,612.49x = 18,095,924.64
  5. Step 5: Solve for x
    x = 18,095,924.64/5,612.49
  6. Step 6: Final answer
    x = 3,224.22

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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.