Home / 2,345.56-3,218.99-2,124.12

Finding the Fourth Proportional to 2,345.56, 3,218.99 and 2,124.12

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Solution

The fourth proportional to 2,345.56, 3,218.99 and 2,124.12 is: 2,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.56 : 3,218.99 = 2,124.12 : x
  2. Step 2: Convert to fraction form
    2,345.56/3,218.99 = 2,124.12/x
  3. Step 3: Cross multiply
    2,345.56x = 3,218.99 × 2,124.12
  4. Step 4: Simplify right side
    2,345.56x = 6,837,534.44
  5. Step 5: Solve for x
    x = 6,837,534.44/2,345.56
  6. Step 6: Final answer
    x = 2,915.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.