Home / 2,074.42-2,861.54-1,316.80

Finding the Fourth Proportional to 2,074.42, 2,861.54 and 1,316.80

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Solution

The fourth proportional to 2,074.42, 2,861.54 and 1,316.80 is: 1,816.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.42 : 2,861.54 = 1,316.80 : x
  2. Step 2: Convert to fraction form
    2,074.42/2,861.54 = 1,316.80/x
  3. Step 3: Cross multiply
    2,074.42x = 2,861.54 × 1,316.80
  4. Step 4: Simplify right side
    2,074.42x = 3,768,075.87
  5. Step 5: Solve for x
    x = 3,768,075.87/2,074.42
  6. Step 6: Final answer
    x = 1,816.45

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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.