Home / 1,528.51-2,288.25-1,140.21

Finding the Fourth Proportional to 1,528.51, 2,288.25 and 1,140.21

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Solution

The fourth proportional to 1,528.51, 2,288.25 and 1,140.21 is: 1,706.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.51 : 2,288.25 = 1,140.21 : x
  2. Step 2: Convert to fraction form
    1,528.51/2,288.25 = 1,140.21/x
  3. Step 3: Cross multiply
    1,528.51x = 2,288.25 × 1,140.21
  4. Step 4: Simplify right side
    1,528.51x = 2,609,085.53
  5. Step 5: Solve for x
    x = 2,609,085.53/1,528.51
  6. Step 6: Final answer
    x = 1,706.95

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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.