Home / 1,860.33-2,565.64-1,328.20

Finding the Fourth Proportional to 1,860.33, 2,565.64 and 1,328.20

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Solution

The fourth proportional to 1,860.33, 2,565.64 and 1,328.20 is: 1,831.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.33 : 2,565.64 = 1,328.20 : x
  2. Step 2: Convert to fraction form
    1,860.33/2,565.64 = 1,328.20/x
  3. Step 3: Cross multiply
    1,860.33x = 2,565.64 × 1,328.20
  4. Step 4: Simplify right side
    1,860.33x = 3,407,678.29
  5. Step 5: Solve for x
    x = 3,407,678.29/1,860.33
  6. Step 6: Final answer
    x = 1,831.76

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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.