Home / 1,643.02-2,454.92-1,585.63

Finding the Fourth Proportional to 1,643.02, 2,454.92 and 1,585.63

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Solution

The fourth proportional to 1,643.02, 2,454.92 and 1,585.63 is: 2,369.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.02 : 2,454.92 = 1,585.63 : x
  2. Step 2: Convert to fraction form
    1,643.02/2,454.92 = 1,585.63/x
  3. Step 3: Cross multiply
    1,643.02x = 2,454.92 × 1,585.63
  4. Step 4: Simplify right side
    1,643.02x = 3,892,594.80
  5. Step 5: Solve for x
    x = 3,892,594.80/1,643.02
  6. Step 6: Final answer
    x = 2,369.17

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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.