Home / 1,685.08-2,326.53-1,507.48

Finding the Fourth Proportional to 1,685.08, 2,326.53 and 1,507.48

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Solution

The fourth proportional to 1,685.08, 2,326.53 and 1,507.48 is: 2,081.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685.08 : 2,326.53 = 1,507.48 : x
  2. Step 2: Convert to fraction form
    1,685.08/2,326.53 = 1,507.48/x
  3. Step 3: Cross multiply
    1,685.08x = 2,326.53 × 1,507.48
  4. Step 4: Simplify right side
    1,685.08x = 3,507,197.44
  5. Step 5: Solve for x
    x = 3,507,197.44/1,685.08
  6. Step 6: Final answer
    x = 2,081.32

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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.