Home / 1,809.15-2,495.51-1,598.65

Finding the Fourth Proportional to 1,809.15, 2,495.51 and 1,598.65

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Solution

The fourth proportional to 1,809.15, 2,495.51 and 1,598.65 is: 2,205.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.15 : 2,495.51 = 1,598.65 : x
  2. Step 2: Convert to fraction form
    1,809.15/2,495.51 = 1,598.65/x
  3. Step 3: Cross multiply
    1,809.15x = 2,495.51 × 1,598.65
  4. Step 4: Simplify right side
    1,809.15x = 3,989,444.82
  5. Step 5: Solve for x
    x = 3,989,444.82/1,809.15
  6. Step 6: Final answer
    x = 2,205.15

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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.