Home / 1,818.93-2,510.51-1,155.65

Finding the Fourth Proportional to 1,818.93, 2,510.51 and 1,155.65

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Solution

The fourth proportional to 1,818.93, 2,510.51 and 1,155.65 is: 1,595.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.93 : 2,510.51 = 1,155.65 : x
  2. Step 2: Convert to fraction form
    1,818.93/2,510.51 = 1,155.65/x
  3. Step 3: Cross multiply
    1,818.93x = 2,510.51 × 1,155.65
  4. Step 4: Simplify right side
    1,818.93x = 2,901,267.49
  5. Step 5: Solve for x
    x = 2,901,267.49/1,818.93
  6. Step 6: Final answer
    x = 1,595.05

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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.