Home / 1,669.45-2,302.91-1,040.08

Finding the Fourth Proportional to 1,669.45, 2,302.91 and 1,040.08

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Solution

The fourth proportional to 1,669.45, 2,302.91 and 1,040.08 is: 1,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.45 : 2,302.91 = 1,040.08 : x
  2. Step 2: Convert to fraction form
    1,669.45/2,302.91 = 1,040.08/x
  3. Step 3: Cross multiply
    1,669.45x = 2,302.91 × 1,040.08
  4. Step 4: Simplify right side
    1,669.45x = 2,395,210.63
  5. Step 5: Solve for x
    x = 2,395,210.63/1,669.45
  6. Step 6: Final answer
    x = 1,434.73

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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.