Home / 2,983.81-4,117.64-1,657.49

Finding the Fourth Proportional to 2,983.81, 4,117.64 and 1,657.49

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Solution

The fourth proportional to 2,983.81, 4,117.64 and 1,657.49 is: 2,287.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.81 : 4,117.64 = 1,657.49 : x
  2. Step 2: Convert to fraction form
    2,983.81/4,117.64 = 1,657.49/x
  3. Step 3: Cross multiply
    2,983.81x = 4,117.64 × 1,657.49
  4. Step 4: Simplify right side
    2,983.81x = 6,824,929.83
  5. Step 5: Solve for x
    x = 6,824,929.83/2,983.81
  6. Step 6: Final answer
    x = 2,287.32

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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.