Home / 2,686.47-3,707.48-1,507.51

Finding the Fourth Proportional to 2,686.47, 3,707.48 and 1,507.51

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Solution

The fourth proportional to 2,686.47, 3,707.48 and 1,507.51 is: 2,080.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.47 : 3,707.48 = 1,507.51 : x
  2. Step 2: Convert to fraction form
    2,686.47/3,707.48 = 1,507.51/x
  3. Step 3: Cross multiply
    2,686.47x = 3,707.48 × 1,507.51
  4. Step 4: Simplify right side
    2,686.47x = 5,589,063.17
  5. Step 5: Solve for x
    x = 5,589,063.17/2,686.47
  6. Step 6: Final answer
    x = 2,080.45

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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.