Home / 1,715.05-2,366.73-929.08

Finding the Fourth Proportional to 1,715.05, 2,366.73 and 929.08

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Solution

The fourth proportional to 1,715.05, 2,366.73 and 929.08 is: 1,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.05 : 2,366.73 = 929.08 : x
  2. Step 2: Convert to fraction form
    1,715.05/2,366.73 = 929.08/x
  3. Step 3: Cross multiply
    1,715.05x = 2,366.73 × 929.08
  4. Step 4: Simplify right side
    1,715.05x = 2,198,881.51
  5. Step 5: Solve for x
    x = 2,198,881.51/1,715.05
  6. Step 6: Final answer
    x = 1,282.11

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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.