Home / 1,565.40-2,160.35-884.04

Finding the Fourth Proportional to 1,565.40, 2,160.35 and 884.04

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Solution

The fourth proportional to 1,565.40, 2,160.35 and 884.04 is: 1,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.40 : 2,160.35 = 884.04 : x
  2. Step 2: Convert to fraction form
    1,565.40/2,160.35 = 884.04/x
  3. Step 3: Cross multiply
    1,565.40x = 2,160.35 × 884.04
  4. Step 4: Simplify right side
    1,565.40x = 1,909,831.39
  5. Step 5: Solve for x
    x = 1,909,831.39/1,565.40
  6. Step 6: Final answer
    x = 1,220.03

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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.