Home / 2,543.99-3,513.55-2,148.98

Finding the Fourth Proportional to 2,543.99, 3,513.55 and 2,148.98

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Solution

The fourth proportional to 2,543.99, 3,513.55 and 2,148.98 is: 2,968.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.99 : 3,513.55 = 2,148.98 : x
  2. Step 2: Convert to fraction form
    2,543.99/3,513.55 = 2,148.98/x
  3. Step 3: Cross multiply
    2,543.99x = 3,513.55 × 2,148.98
  4. Step 4: Simplify right side
    2,543.99x = 7,550,566.69
  5. Step 5: Solve for x
    x = 7,550,566.69/2,543.99
  6. Step 6: Final answer
    x = 2,968.00

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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.