Home / 1,955.07-2,931.68-655.62

Finding the Fourth Proportional to 1,955.07, 2,931.68 and 655.62

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Solution

The fourth proportional to 1,955.07, 2,931.68 and 655.62 is: 983.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.07 : 2,931.68 = 655.62 : x
  2. Step 2: Convert to fraction form
    1,955.07/2,931.68 = 655.62/x
  3. Step 3: Cross multiply
    1,955.07x = 2,931.68 × 655.62
  4. Step 4: Simplify right side
    1,955.07x = 1,922,064.76
  5. Step 5: Solve for x
    x = 1,922,064.76/1,955.07
  6. Step 6: Final answer
    x = 983.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.