Home / 1,541.61-2,124.95-1,226.25

Finding the Fourth Proportional to 1,541.61, 2,124.95 and 1,226.25

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Solution

The fourth proportional to 1,541.61, 2,124.95 and 1,226.25 is: 1,690.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.61 : 2,124.95 = 1,226.25 : x
  2. Step 2: Convert to fraction form
    1,541.61/2,124.95 = 1,226.25/x
  3. Step 3: Cross multiply
    1,541.61x = 2,124.95 × 1,226.25
  4. Step 4: Simplify right side
    1,541.61x = 2,605,713.81
  5. Step 5: Solve for x
    x = 2,605,713.81/1,541.61
  6. Step 6: Final answer
    x = 1,690.25

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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.