Home / 2,941.70-4,059.47-1,615.40

Finding the Fourth Proportional to 2,941.70, 4,059.47 and 1,615.40

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Solution

The fourth proportional to 2,941.70, 4,059.47 and 1,615.40 is: 2,229.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,941.70 : 4,059.47 = 1,615.40 : x
  2. Step 2: Convert to fraction form
    2,941.70/4,059.47 = 1,615.40/x
  3. Step 3: Cross multiply
    2,941.70x = 4,059.47 × 1,615.40
  4. Step 4: Simplify right side
    2,941.70x = 6,557,639.46
  5. Step 5: Solve for x
    x = 6,557,639.46/2,941.70
  6. Step 6: Final answer
    x = 2,229.20

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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.