Home / 2,953.02-4,075.12-1,819.20

Finding the Fourth Proportional to 2,953.02, 4,075.12 and 1,819.20

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Solution

The fourth proportional to 2,953.02, 4,075.12 and 1,819.20 is: 2,510.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.02 : 4,075.12 = 1,819.20 : x
  2. Step 2: Convert to fraction form
    2,953.02/4,075.12 = 1,819.20/x
  3. Step 3: Cross multiply
    2,953.02x = 4,075.12 × 1,819.20
  4. Step 4: Simplify right side
    2,953.02x = 7,413,458.30
  5. Step 5: Solve for x
    x = 7,413,458.30/2,953.02
  6. Step 6: Final answer
    x = 2,510.47

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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.