Home / 1,878.08-2,803.98-1,656.60

Finding the Fourth Proportional to 1,878.08, 2,803.98 and 1,656.60

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Solution

The fourth proportional to 1,878.08, 2,803.98 and 1,656.60 is: 2,473.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878.08 : 2,803.98 = 1,656.60 : x
  2. Step 2: Convert to fraction form
    1,878.08/2,803.98 = 1,656.60/x
  3. Step 3: Cross multiply
    1,878.08x = 2,803.98 × 1,656.60
  4. Step 4: Simplify right side
    1,878.08x = 4,645,073.27
  5. Step 5: Solve for x
    x = 4,645,073.27/1,878.08
  6. Step 6: Final answer
    x = 2,473.31

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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.