Home / 2,931.51-4,046.64-1,870.23

Finding the Fourth Proportional to 2,931.51, 4,046.64 and 1,870.23

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Solution

The fourth proportional to 2,931.51, 4,046.64 and 1,870.23 is: 2,581.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.51 : 4,046.64 = 1,870.23 : x
  2. Step 2: Convert to fraction form
    2,931.51/4,046.64 = 1,870.23/x
  3. Step 3: Cross multiply
    2,931.51x = 4,046.64 × 1,870.23
  4. Step 4: Simplify right side
    2,931.51x = 7,568,147.53
  5. Step 5: Solve for x
    x = 7,568,147.53/2,931.51
  6. Step 6: Final answer
    x = 2,581.66

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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.