Home / 1,859.18-2,565.15-1,328.23

Finding the Fourth Proportional to 1,859.18, 2,565.15 and 1,328.23

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Solution

The fourth proportional to 1,859.18, 2,565.15 and 1,328.23 is: 1,832.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.18 : 2,565.15 = 1,328.23 : x
  2. Step 2: Convert to fraction form
    1,859.18/2,565.15 = 1,328.23/x
  3. Step 3: Cross multiply
    1,859.18x = 2,565.15 × 1,328.23
  4. Step 4: Simplify right side
    1,859.18x = 3,407,106.09
  5. Step 5: Solve for x
    x = 3,407,106.09/1,859.18
  6. Step 6: Final answer
    x = 1,832.58

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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.