Home / 2,615.02-3,921.93-1,561.13

Finding the Fourth Proportional to 2,615.02, 3,921.93 and 1,561.13

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Solution

The fourth proportional to 2,615.02, 3,921.93 and 1,561.13 is: 2,341.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.02 : 3,921.93 = 1,561.13 : x
  2. Step 2: Convert to fraction form
    2,615.02/3,921.93 = 1,561.13/x
  3. Step 3: Cross multiply
    2,615.02x = 3,921.93 × 1,561.13
  4. Step 4: Simplify right side
    2,615.02x = 6,122,642.58
  5. Step 5: Solve for x
    x = 6,122,642.58/2,615.02
  6. Step 6: Final answer
    x = 2,341.34

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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.