Home / 2,970.08-4,098.69-1,643.75

Finding the Fourth Proportional to 2,970.08, 4,098.69 and 1,643.75

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Solution

The fourth proportional to 2,970.08, 4,098.69 and 1,643.75 is: 2,268.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.08 : 4,098.69 = 1,643.75 : x
  2. Step 2: Convert to fraction form
    2,970.08/4,098.69 = 1,643.75/x
  3. Step 3: Cross multiply
    2,970.08x = 4,098.69 × 1,643.75
  4. Step 4: Simplify right side
    2,970.08x = 6,737,223.72
  5. Step 5: Solve for x
    x = 6,737,223.72/2,970.08
  6. Step 6: Final answer
    x = 2,268.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.