Home / 1,535.04-2,118.36-836.42

Finding the Fourth Proportional to 1,535.04, 2,118.36 and 836.42

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Solution

The fourth proportional to 1,535.04, 2,118.36 and 836.42 is: 1,154.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.04 : 2,118.36 = 836.42 : x
  2. Step 2: Convert to fraction form
    1,535.04/2,118.36 = 836.42/x
  3. Step 3: Cross multiply
    1,535.04x = 2,118.36 × 836.42
  4. Step 4: Simplify right side
    1,535.04x = 1,771,831.22
  5. Step 5: Solve for x
    x = 1,771,831.22/1,535.04
  6. Step 6: Final answer
    x = 1,154.26

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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.