Home / 2,088.95-3,130.43-1,385.01

Finding the Fourth Proportional to 2,088.95, 3,130.43 and 1,385.01

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Solution

The fourth proportional to 2,088.95, 3,130.43 and 1,385.01 is: 2,075.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.95 : 3,130.43 = 1,385.01 : x
  2. Step 2: Convert to fraction form
    2,088.95/3,130.43 = 1,385.01/x
  3. Step 3: Cross multiply
    2,088.95x = 3,130.43 × 1,385.01
  4. Step 4: Simplify right side
    2,088.95x = 4,335,669.93
  5. Step 5: Solve for x
    x = 4,335,669.93/2,088.95
  6. Step 6: Final answer
    x = 2,075.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.