Home / 1,045.85-1,560.47-1,021.14

Finding the Fourth Proportional to 1,045.85, 1,560.47 and 1,021.14

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Solution

The fourth proportional to 1,045.85, 1,560.47 and 1,021.14 is: 1,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.85 : 1,560.47 = 1,021.14 : x
  2. Step 2: Convert to fraction form
    1,045.85/1,560.47 = 1,021.14/x
  3. Step 3: Cross multiply
    1,045.85x = 1,560.47 × 1,021.14
  4. Step 4: Simplify right side
    1,045.85x = 1,593,453.23
  5. Step 5: Solve for x
    x = 1,593,453.23/1,045.85
  6. Step 6: Final answer
    x = 1,523.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.