Home / 2,152.95-2,973.99-1,686.74

Finding the Fourth Proportional to 2,152.95, 2,973.99 and 1,686.74

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Solution

The fourth proportional to 2,152.95, 2,973.99 and 1,686.74 is: 2,330.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.95 : 2,973.99 = 1,686.74 : x
  2. Step 2: Convert to fraction form
    2,152.95/2,973.99 = 1,686.74/x
  3. Step 3: Cross multiply
    2,152.95x = 2,973.99 × 1,686.74
  4. Step 4: Simplify right side
    2,152.95x = 5,016,356.08
  5. Step 5: Solve for x
    x = 5,016,356.08/2,152.95
  6. Step 6: Final answer
    x = 2,330.00

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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.