Home / 1,561.06-2,155.58-1,300.44

Finding the Fourth Proportional to 1,561.06, 2,155.58 and 1,300.44

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Solution

The fourth proportional to 1,561.06, 2,155.58 and 1,300.44 is: 1,795.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561.06 : 2,155.58 = 1,300.44 : x
  2. Step 2: Convert to fraction form
    1,561.06/2,155.58 = 1,300.44/x
  3. Step 3: Cross multiply
    1,561.06x = 2,155.58 × 1,300.44
  4. Step 4: Simplify right side
    1,561.06x = 2,803,202.46
  5. Step 5: Solve for x
    x = 2,803,202.46/1,561.06
  6. Step 6: Final answer
    x = 1,795.70

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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.