Home / 1,585.04-2,378.28-816.08

Finding the Fourth Proportional to 1,585.04, 2,378.28 and 816.08

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Solution

The fourth proportional to 1,585.04, 2,378.28 and 816.08 is: 1,224.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.04 : 2,378.28 = 816.08 : x
  2. Step 2: Convert to fraction form
    1,585.04/2,378.28 = 816.08/x
  3. Step 3: Cross multiply
    1,585.04x = 2,378.28 × 816.08
  4. Step 4: Simplify right side
    1,585.04x = 1,940,866.74
  5. Step 5: Solve for x
    x = 1,940,866.74/1,585.04
  6. Step 6: Final answer
    x = 1,224.49

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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.