Home / 1,045.51-1,566.99-386.85

Finding the Fourth Proportional to 1,045.51, 1,566.99 and 386.85

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Solution

The fourth proportional to 1,045.51, 1,566.99 and 386.85 is: 579.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.51 : 1,566.99 = 386.85 : x
  2. Step 2: Convert to fraction form
    1,045.51/1,566.99 = 386.85/x
  3. Step 3: Cross multiply
    1,045.51x = 1,566.99 × 386.85
  4. Step 4: Simplify right side
    1,045.51x = 606,180.31
  5. Step 5: Solve for x
    x = 606,180.31/1,045.51
  6. Step 6: Final answer
    x = 579.79

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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.