Home / 1,690.07-2,332.69-1,026.79

Finding the Fourth Proportional to 1,690.07, 2,332.69 and 1,026.79

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Solution

The fourth proportional to 1,690.07, 2,332.69 and 1,026.79 is: 1,417.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.07 : 2,332.69 = 1,026.79 : x
  2. Step 2: Convert to fraction form
    1,690.07/2,332.69 = 1,026.79/x
  3. Step 3: Cross multiply
    1,690.07x = 2,332.69 × 1,026.79
  4. Step 4: Simplify right side
    1,690.07x = 2,395,182.77
  5. Step 5: Solve for x
    x = 2,395,182.77/1,690.07
  6. Step 6: Final answer
    x = 1,417.21

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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.