Home / 2,615.47-3,605.92-1,907.49

Finding the Fourth Proportional to 2,615.47, 3,605.92 and 1,907.49

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Solution

The fourth proportional to 2,615.47, 3,605.92 and 1,907.49 is: 2,629.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.47 : 3,605.92 = 1,907.49 : x
  2. Step 2: Convert to fraction form
    2,615.47/3,605.92 = 1,907.49/x
  3. Step 3: Cross multiply
    2,615.47x = 3,605.92 × 1,907.49
  4. Step 4: Simplify right side
    2,615.47x = 6,878,256.34
  5. Step 5: Solve for x
    x = 6,878,256.34/2,615.47
  6. Step 6: Final answer
    x = 2,629.84

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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.