Home / 5,585.69-8,378.73-1,690.13

Finding the Fourth Proportional to 5,585.69, 8,378.73 and 1,690.13

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Solution

The fourth proportional to 5,585.69, 8,378.73 and 1,690.13 is: 2,535.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.69 : 8,378.73 = 1,690.13 : x
  2. Step 2: Convert to fraction form
    5,585.69/8,378.73 = 1,690.13/x
  3. Step 3: Cross multiply
    5,585.69x = 8,378.73 × 1,690.13
  4. Step 4: Simplify right side
    5,585.69x = 14,161,101.04
  5. Step 5: Solve for x
    x = 14,161,101.04/5,585.69
  6. Step 6: Final answer
    x = 2,535.25

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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.