Home / 1,826.40-2,523.12-1,688.16

Finding the Fourth Proportional to 1,826.40, 2,523.12 and 1,688.16

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Solution

The fourth proportional to 1,826.40, 2,523.12 and 1,688.16 is: 2,332.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826.40 : 2,523.12 = 1,688.16 : x
  2. Step 2: Convert to fraction form
    1,826.40/2,523.12 = 1,688.16/x
  3. Step 3: Cross multiply
    1,826.40x = 2,523.12 × 1,688.16
  4. Step 4: Simplify right side
    1,826.40x = 4,259,430.26
  5. Step 5: Solve for x
    x = 4,259,430.26/1,826.40
  6. Step 6: Final answer
    x = 2,332.15

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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.