Home / 1,528.48-2,291.58-910.72

Finding the Fourth Proportional to 1,528.48, 2,291.58 and 910.72

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Solution

The fourth proportional to 1,528.48, 2,291.58 and 910.72 is: 1,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.48 : 2,291.58 = 910.72 : x
  2. Step 2: Convert to fraction form
    1,528.48/2,291.58 = 910.72/x
  3. Step 3: Cross multiply
    1,528.48x = 2,291.58 × 910.72
  4. Step 4: Simplify right side
    1,528.48x = 2,086,987.74
  5. Step 5: Solve for x
    x = 2,086,987.74/1,528.48
  6. Step 6: Final answer
    x = 1,365.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.