Home / 1,528.04-2,108.58-864.84

Finding the Fourth Proportional to 1,528.04, 2,108.58 and 864.84

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Solution

The fourth proportional to 1,528.04, 2,108.58 and 864.84 is: 1,193.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.04 : 2,108.58 = 864.84 : x
  2. Step 2: Convert to fraction form
    1,528.04/2,108.58 = 864.84/x
  3. Step 3: Cross multiply
    1,528.04x = 2,108.58 × 864.84
  4. Step 4: Simplify right side
    1,528.04x = 1,823,584.33
  5. Step 5: Solve for x
    x = 1,823,584.33/1,528.04
  6. Step 6: Final answer
    x = 1,193.41

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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.