Home / 2,075.63-2,861.02-1,515.21

Finding the Fourth Proportional to 2,075.63, 2,861.02 and 1,515.21

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Solution

The fourth proportional to 2,075.63, 2,861.02 and 1,515.21 is: 2,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.63 : 2,861.02 = 1,515.21 : x
  2. Step 2: Convert to fraction form
    2,075.63/2,861.02 = 1,515.21/x
  3. Step 3: Cross multiply
    2,075.63x = 2,861.02 × 1,515.21
  4. Step 4: Simplify right side
    2,075.63x = 4,335,037.28
  5. Step 5: Solve for x
    x = 4,335,037.28/2,075.63
  6. Step 6: Final answer
    x = 2,088.55

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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.