Home / 2,615.85-3,613.07-1,955.63

Finding the Fourth Proportional to 2,615.85, 3,613.07 and 1,955.63

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Solution

The fourth proportional to 2,615.85, 3,613.07 and 1,955.63 is: 2,701.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.85 : 3,613.07 = 1,955.63 : x
  2. Step 2: Convert to fraction form
    2,615.85/3,613.07 = 1,955.63/x
  3. Step 3: Cross multiply
    2,615.85x = 3,613.07 × 1,955.63
  4. Step 4: Simplify right side
    2,615.85x = 7,065,827.34
  5. Step 5: Solve for x
    x = 7,065,827.34/2,615.85
  6. Step 6: Final answer
    x = 2,701.16

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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.