Home / 1,725.23-2,378.63-1,165.32

Finding the Fourth Proportional to 1,725.23, 2,378.63 and 1,165.32

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Solution

The fourth proportional to 1,725.23, 2,378.63 and 1,165.32 is: 1,606.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.23 : 2,378.63 = 1,165.32 : x
  2. Step 2: Convert to fraction form
    1,725.23/2,378.63 = 1,165.32/x
  3. Step 3: Cross multiply
    1,725.23x = 2,378.63 × 1,165.32
  4. Step 4: Simplify right side
    1,725.23x = 2,771,868.02
  5. Step 5: Solve for x
    x = 2,771,868.02/1,725.23
  6. Step 6: Final answer
    x = 1,606.66

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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.