Home / 1,875.81-2,585.48-1,718.91

Finding the Fourth Proportional to 1,875.81, 2,585.48 and 1,718.91

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Solution

The fourth proportional to 1,875.81, 2,585.48 and 1,718.91 is: 2,369.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.81 : 2,585.48 = 1,718.91 : x
  2. Step 2: Convert to fraction form
    1,875.81/2,585.48 = 1,718.91/x
  3. Step 3: Cross multiply
    1,875.81x = 2,585.48 × 1,718.91
  4. Step 4: Simplify right side
    1,875.81x = 4,444,198.83
  5. Step 5: Solve for x
    x = 4,444,198.83/1,875.81
  6. Step 6: Final answer
    x = 2,369.22

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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.